Low level assembly

nobodythere

I'm interested in doing some low-level assembly in windows, but all I can seem to find is high-level assembly examples. I'd like to get as raw as possible. E.g.

[COLOR=#000000]ipdev:~/tmp/bfd$ cat > eggcode.s

	.text
	        .align 4
	.globl main
	        .type    main,@function
	main:
	        nop
	        nop
	        nop
	        nop                  
	        nop
	        nop
	        pushl %ebp
	        movl %esp,%ebp
	        jmp string
	callit: call 0x1d8-0x1214-0x10
	        addl $4,%esp
	        movl %ebp,%esp
	        popl %ebp
	        ret
	string:
	        call callit
	        .string "whore\n"
	
	ipdev:~/tmp/bfd$[/COLOR]

That's the kind of code you can work with with in an assembler under linux, but looking at Iczelion's win32 asm tutorials etc it seems so watered down. Can anyone point me in the right direction?

PhantomBeaker

When we did assembly in comp-sci in ucd, we used masm for assembling this stuff.

You might be able to pick it up somewhere... but it's a fairly old suite of programs. But it does exactly what you want to look into.

In linux, have a look at nasm - that's what all the emulators want when they're being compiled.

Hope that helps.

jimmycrackcorm

You can embed raw assembly in a Borland delphi application by using the ASM keyword. Makes it convenient to have surrounding windows structures yet get down to the dirty stuff easily.

dazberry

jimmycrackcorm wrote:

You can embed raw assembly in a Borland delphi application by using the ASM keyword.

Back in the day I used to use Turbo Pascal for the same thing. The Delphi.Language.Basm newsgroup is still an interesting read thou'.

grasshopa wrote:

That's the kind of code you can work with with in an assembler under linux, but looking at Iczelion's win32 asm tutorials etc it seems so watered down. Can anyone point me in the right direction?

Take a look here http://www.grc.com/smgassembly.htm, and there are some links on the bottom that you might find useful

D.

Mach

Hey i found this nice tutorial the other day

http://www.skynet.ie/~darkstar/assembler/

Hope it helps

humbert

I've read Iczelion's ones and they're quite good, depending on what you're up too, the actual assembly isn't difficult it's understanding the environment that can be a bitch, whether it's writing vxds or shell code or what ever else people use assembly for...

osmethod

A good assembler for windows is at:

http://www.masm32.com/

If you want to get really raw consider downloading Smart Boot Manager Source from:

http://btmgr.sourceforge.net/3.7/

I believe both linux and dos versions are there.

Ralph Browns Interrupts List is very informative at:

http://www.cs.cmu.edu/afs/cs.cmu.edu/user/ralf/pub/WWW/files.html

Also check out simtel.net for loads of tools. While your there look out for ASMENV19.ZIP - a nice borlan 3 style interface for assemblers and linkers.

osmethod